Find an equation for all the points (x, y, z) such that their distance to the z-axis is twice their distance to the xy plane. Identify and sketch the corresponding surface.

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound